UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 26, 2012

SCHLUMBERGER N.V. (SCHLUMBERGER LIMITED)

(Exact name of registrant as specified in its charter)

42, rue Saint-Dominique, Paris, France 75007

5599 San Felipe, 17th Floor, Houston, Texas 77056

Parkstraat 83, The Hague, The Netherlands 2514 JG

(Addresses of principal executive offices and zip or postal codes)

Registrant’s telephone number in the United States, including area code: (713) 375-3400

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Item 7.01 Regulation FD Disclosure.

On March 26, 2012, Paal Kibsgaard, Chief Executive Officer of Schlumberger Limited (“Schlumberger”), addressed the oil and gas investment community at the 40th Annual Howard Weil Energy Conference in New Orleans, Louisiana. A copy of the presentation and slides is attached as Exhibit 99. Schlumberger has also posted this information on its website at www.slb.com/ir.

Forward-Looking Statements

The attached presentation contains “forward-looking statements” within the meaning of the U.S. federal securities laws, which include any statements that are not historical facts, such as Schlumberger’s forecasts or expectations regarding business outlook; growth for Schlumberger as a whole and for each of its segments (and for specified products or geographic areas within each segment); oil and natural gas demand and production growth; oil and natural gas prices; improvements in operating procedures and technological offerings; capital expenditures by Schlumberger and the oil and gas industry; the business strategies of Schlumberger’s customers; future global economic conditions; and future results of operations in North America and the rest of the world. These statements are subject to risks and uncertainties, including, but not limited to, current global economic conditions; changes in exploration and production spending by Schlumberger’s customers and changes in the level of oil and natural gas exploration and development; general economic, political and business conditions in key regions of the world; pricing erosion; weather and seasonal factors; the ability to respond to increased activity levels; changes in government regulations and regulatory requirements, including those related to offshore oil and gas exploration, radioactive sources, explosives, chemicals, hydraulic fracturing services and climate-related initiatives; operational delays or program reductions; the inability of technology to meet new challenges in exploration and production; the inability to reduce risk in drilling operations; and other risks and uncertainties detailed in our Forms 10-K, 10-Q, and 8-K filed with or furnished to the Securities and Exchange Commission. If one or more of these or other risks or uncertainties materialize (or the consequences of such a development changes), or should underlying assumptions prove incorrect, actual outcomes may vary materially from those reflected in our forward-looking statements. Schlumberger disclaims any intention or obligation to update publicly or revise such statements, whether as a result of new information, future events or otherwise.

Item 9.01 Financial Statements and Exhibits.

The following exhibit is furnished in response to Item 7.01:

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 26, 2012